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System Functional Descriptions
CAUTION
6-18
Lithium Backup Battery
The Backup Battery (located on the Control PCA) provides standby power to
maintain data during times when the main battery is either absent or dis-
charged and no external power is supplied. The data maintained includes the
user's configuration choices, and the system time and date.
Data Card
The Data Card allows capture of key information such as ECG waveform,
shock advisories, charging, and delivering a shock. The Data Card is read by
the Event Review Data Management system for post-event analysis.
The Data Card must only be inserted or removed when the unit's power is off.
A Data Card inserted while the power is on will not be recognized by the unit.
If a Card is removed while the power is on, its stored data may be corrupted
and rendered unreadable.
Theory of Operation
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